Column headers of a CListCtrl

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I'm using a CTabCtrl with a CListCtrl inside the tab control, I need to know how to remove the column headings when I switch tabs. I've tried CListCtrl::DeleteColumn() and it does not seem to have an effect. I have also tried...

C++

int headCount = m_ListCtrl.GetHeaderCtrl()->GetItemCount();

for(int i = 0; i < headCount; i++)
{
    m_ListCtrl.GetHeaderCtrl()->DeleteItem(i);
}

Any suggestions?

Posted 10-Jun-12 17:09pm

DrBones69

Updated 10-Jun-12 17:43pm

v2

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Roger Allen · Accepted Answer · 2012-06-13T02:43:00

Your above code would fail to delete all the columns, half would always remain:

Say you had 3 columns

Columns 0, 1 and 2

you delete column 0, you now have columns 0, 1 as the remaining columns get promoted.
you delete column 1, you now have column 0 only
you attempt to delete column 2, but the call fails as there in no column 2

C++

C#

for(int i = 0; i < headCount; i++)
{
    m_ListCtrl.GetHeaderCtrl()->DeleteItem(0); // always delete column 0 only
}

Richard MacCutchan · Accepted Answer · 2012-06-10T22:53:00

Solution 1

You need to set or unset the LVS_NOCOLUMNHEADER style in your list control as described here[^].

Posted 10-Jun-12 22:53pm

Richard MacCutchan

Comments

DrBones69 12-Jun-12 21:45pm

Thanks Richard, but I'm trying to replace the headers with new ones when selecting a new tab. When selecting a new tab, if I add a new column header it inserts into the existing headers.

Richard MacCutchan 13-Jun-12 3:45am

I think you may need to use the SetItem() function, rather than deleting as above. Also your delete loop will only delete some of the items in your code sample, since you are deleting from zero instead of from the end working back.